/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* CSS Custom Properties for Cloudflare optimization */
:root {
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --danger-color: #dc2626;
    --danger-hover: #b91c1c;
    --text-primary: #333;
    --text-secondary: #666;
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.2);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-gradient);
    min-height: 100vh;
    font-display: swap;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    padding: 2rem 0;
    text-align: center;
}

.title {
    font-size: 3rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.subtitle {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 300;
}

.privacy-notice {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1rem;
    padding: 0.75rem 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.privacy-icon {
    font-size: 1.1rem;
    flex-shrink: 0;
}

.privacy-text {
    line-height: 1.4;
}

/* Main Content */
.main {
    padding: 2rem 0;
}

/* Upload Section */
.upload-section {
    margin-bottom: 2rem;
}

.upload-area {
    border: 3px dashed rgba(255, 255, 255, 0.3);
    border-radius: var(--border-radius-lg);
    padding: 3rem;
    text-align: center;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.upload-area:hover,
.upload-area.dragover {
    border-color: rgba(255, 255, 255, 0.6);
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.upload-content {
    color: white;
}

.upload-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.upload-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.upload-content p {
    opacity: 0.8;
    font-size: 1rem;
}

/* Controls */
.controls {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
    align-items: center;
    justify-content: space-between;
}

.control-group {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
}

.btn-danger {
    background: var(--danger-color);
    color: white;
}

.btn-danger:hover {
    background: var(--danger-hover);
}

.btn-icon {
    font-size: 1rem;
}

.select {
    padding: 0.75rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 0.9rem;
    backdrop-filter: blur(10px);
}

.select option {
    background: #333;
    color: white;
}

.search-input {
    padding: 0.75rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 0.9rem;
    backdrop-filter: blur(10px);
    min-width: 200px;
}

.search-input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

/* Gallery */
.gallery-section {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    border: 1px solid var(--glass-border);
}

.gallery-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    color: white;
}

.gallery-header h2 {
    font-size: 1.8rem;
    font-weight: 600;
}

.image-count {
    font-size: 0.9rem;
    opacity: 0.8;
}

.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
}

.gallery-item {
    background: var(--glass-bg);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: 1px solid var(--glass-border);
}

.gallery-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.gallery-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

.gallery-item-info {
    padding: 1rem;
    color: white;
}

.gallery-item-title {
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.gallery-item-date {
    font-size: 0.8rem;
    opacity: 0.7;
}

.gallery-item-description {
    font-size: 0.9rem;
    opacity: 0.9;
    margin-top: 0.5rem;
    line-height: 1.4;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: rgba(255, 255, 255, 0.8);
    grid-column: 1 / -1;
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.empty-state h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.empty-state p {
    font-size: 1rem;
    opacity: 0.7;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal-content {
    background: white;
    margin: 5% auto;
    padding: 0;
    border-radius: var(--border-radius-lg);
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    overflow: hidden;
    position: relative;
}

.close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    z-index: 1001;
    color: white;
    background: rgba(0, 0, 0, 0.5);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.close:hover {
    background: rgba(0, 0, 0, 0.8);
    transform: scale(1.1);
}

.modal-body {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.modal-body img {
    width: 100%;
    max-height: 60vh;
    object-fit: contain;
    background: #f5f5f5;
}

.modal-info {
    padding: 2rem;
    flex: 1;
}

.modal-info h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.modal-info p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.modal-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

/* Form Styles */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.2s ease;
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 80px;
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .title {
        font-size: 2rem;
    }
    
    .privacy-notice {
        flex-direction: column;
        text-align: center;
        padding: 0.75rem 1rem;
        margin-top: 0.75rem;
    }
    
    .privacy-text {
        font-size: 0.85rem;
    }
    
    .controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .control-group {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .gallery {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 1rem;
    }
    
    .upload-area {
        padding: 2rem 1rem;
    }
    
    .modal-content {
        width: 95%;
        margin: 2% auto;
    }
    
    .modal-body {
        flex-direction: column;
    }
    
    .modal-body img {
        max-height: 50vh;
    }
}

@media (max-width: 480px) {
    .gallery {
        grid-template-columns: 1fr;
    }
    
    .btn {
        padding: 0.6rem 1rem;
        font-size: 0.8rem;
    }
    
    .search-input {
        min-width: 150px;
    }
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Fade in animation */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}